Several new polymers for optical resolution membranes were synthesized
and enantioselective permeabilities of the polymer membranes were exa
mind for various racemates using four methods, that is, concentration
driven permeation (CP), pressure-driven permeation (Delta P), pervapor
ation (PV), and evapomeation (EV). (+)-Poly (1-(dimethyl (10-pinanyl)
silyl)-1-propyne) ((+)-poly (DPSP)) membranes showed high enantioselec
tive permeabilities in CP for various racemates and low permeation rat
es, which were improved by using PV or EV. (-)-Poly (2-(dimethyl (10-p
inanyl) silyl) norbornadiene) had a higher permeability than (+)-poly
(DPSP). Polymers having a chiral main chain showed poor enantioselecti
ve permeability. Highly and stably enantioselective permeations were o
bserved through the blend membranes whose surface were modified by (-)
-oligo-(methyl (10-pinanyl) siloxane((-)-OMPS). The graft copolymers w
ith (-)-OMPS as the grafts are promising for a higher performance memb
rane.